Dosing a space in hazardous chemicals isn't necessarily going to do anything to stop spread the spread of COVID-19, but it can enhance led to some health consequences. And asthma is one of them. I guess in terms of health effects are respiratory problems. http://www.solvecast.com/articles/detail/15298-impact-of-cleaning-products-on-human-health-in-the-workplace-with-doug-gatlin-ceo-green-seal